Improvement in carriage-jacks



UNITED STATES PATENT (lirica CALVIN H. rAiNn, or ritoviDnNen, 4nii'onn' ISLAND, AssicNon 'ro HiMsnr-.a AND HOWARD TILDEN, oF PHILADELPHIA, PENNSYLVANIA.

iMPRovEMENT IN CARRIAGE-JACKS.

peeiliention forming part of Letters Patent No. 36,587, dated September 3U, 1562.

To al whom, t may concern:

Be it known that I, CALVIN H. PAINE, a citizen of the United States of America, and a resident o1' Providence, in the county of .Provi` dence and State of Rhode Island, have invented a new and useful or Improved Carriage- J ack; and I do hereby declare the sanne to beA l'ully described in the following specification and representedv in the accompanying draw'- ings, of which* y Figure lis a top view, and Figs. 2 and side elevations. of my said invention, the nature of which consists, first, in a peculiar ar rangement of legs and levers and in combining and arranging a toggle or link with the two levers in manner and so as to operate therewith substantially as hereinafter described.

V,In Fig. 2 the twolevers and the toggle are exhibited in one of their extreme positionsviz.,'that in which they are arranged when the j ack is ready to be placed underneath an axle preparatory to effecting the raising of it. Fig.

3 represents the positions of the levers and toggle when the handlever isdepressed to its lowest situation. The stand or frame of the carriage-jack I make of two bars, A B, crossed onv one a11-l other, as shown inthe drawings. The bar A is the longer one, and has a rack or notched". lever, C, laid against it and the bar B, and

jointed tothe frame at its upper end,as shown at b.

A second or hand lever, D, is arranged underneath .the lever C and between it and the bar A, and has its'fulerum E fixed on the bar B. A link or toggle, F, is jointed both t0 the lever C and the inferior arm c of the lever D, the Whole being so constructed as to render such inferior arm and togglea pair of toggles.

til the two toggles have their joints broughtl into a straight line with each other. A fur'- ther depression of the longer arm of the lever will throw the toggles'rearward and cause the lever C to rest on the inferior arm c of the leverD, as shown in Fig. 3. Thus this carriageljack requires no extra raekor pin to fasten its hand-lever i-n order to hold up theleve'rC.

.The apparatus is so constructed as to be selffastening, and this by the downward movement of the hand-lever. The mode of making the frame and varranging it and the two levers is simple and advantageous. The lower end of each bar of the frame may be provided with a foot, e, or it may be protected bya metallic ferrule driven on it.

I lay no claim to the invention described in the United States Patent No. 30,436, granted the 9th, day of October of the year 1860; but

I claim- 1. The new or improved arrangement, sub'- -stantially as described, of -the bars A B and the levers C D. y

2. VThe combination and arrangement of the toggle or link F with the levers C D and their supporting-frame, the whole being made to operate as explained.

cALviN H. PAINE;

Witnesses:

R. H. EDDY, F. P. HALE, Jr.. 

